What are the side effects of Viagra?
Mar 09, 2025
Source: Cainiu Health
Dr. Bai Hongmei
Introduction
In general, Viagra refers to sildenafil citrate tablets and can also be used to treat male erectile dysfunction. Possible side effects include facial flushing, indigestion, visual abnormalities, nasal congestion, and hypotension. Before taking this medication, it is essential to consult a physician, inform them of your medical history, especially cardiovascular diseases, and determine under medical guidance whether it is suitable for you to take the drug.
Generally speaking, Viagra refers to sildenafil citrate tablets, which can be used to treat male erectile dysfunction. Its possible side effects include facial flushing, indigestion, visual disturbances, nasal congestion, hypotension, etc. The specific analysis is as follows:
1. Facial Flushing
Sildenafil citrate tablets cause vasodilation. As the face contains many blood vessels, the medication-induced vasodilation usually increases facial blood flow, thus causing facial flushing.
2. Indigestion
The medication may affect normal gastrointestinal motility and secretion of digestive fluids, leading to gastrointestinal dysfunction, thus causing symptoms of indigestion such as nausea and stomach discomfort.
3. Visual Disturbances
Sildenafil citrate tablets can affect related enzymes in the retina, interfering with visual signal transmission, resulting in visual abnormalities such as blurred vision and increased light sensitivity.
4. Nasal Congestion
Sildenafil citrate tablets may cause vasodilation of nasal mucosal blood vessels, leading to nasal mucosal congestion and edema, thereby causing impaired nasal ventilation and symptoms of nasal congestion.
5. Hypotension
Taking excessive amounts of sildenafil citrate tablets can cause excessive vasodilation, leading to a sharp drop in blood pressure, which may cause symptoms of hypotension such as dizziness, fatigue, and palpitations.
Before taking this medication, be sure to consult a physician, inform them of your medical history, especially cardiovascular diseases, and decide under medical guidance whether it is suitable for you. Take the medication strictly according to the prescribed dosage; do not adjust the dose yourself to avoid serious side effects.
